Hi,
Have you tried to install offline package to update .NET Framwork 4.5.2 :
https://support.microsoft.com/en-us/help/2934520/the-microsoft--net-framework-4-5-2-for-windows-8-1--windows-rt-8-1--an
>>KB2934520 is failing to be installed with error 0x800f0831 - CBS_E_STORE_CORRUPTION.
There is only one error message which pointing KB2934520 failed installation in CBS log ?
Best Regards,
Elton
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